Here are some free resources to help encourage/equip you to teach math from a biblical worldview as you go.

**Free Transforming Math Video**– Watch this 18-minute video to get a glimpse into how biblical principles really can transform math, making it an exciting exploration of God’s creation. When you sign up for the video, you’ll also get a free read-aloud story that illustrates how often we really do use numbers, and a series of emails with other information and reminders to help you teach from a biblical worldview.

**Math, Lightning, & Thunder**– I recently blogged over on The Creation Club about how we can use math to help us approximate the distance to a lightning strike. Even a summer thunderstorm gives us an opportunity to explore God’s creation and marvel at God’s greatness (after all, He’s the one who makes the lightening and brings forth the wind – see Jeremiah 51:16).**Upcoming Articles**– I have articles coming out this fall/winter in both the*Old Schoolhouse Magazine*and*Homeschool Enrichment*. If you get either of those magazines, be sure to take a look.**Sample Lessons**– Watch a free preview of a lesson on place value, one on fractions, and one on lines and angles.

The tornado siren intruded on Sarah’s solitude. Sarah knew she should get up and take shelter. Only she was in the middle of a book and didn’t want to stop.

*Just a few more pages*, she told herself. *There’s plenty of time.*

But her book kept getting more and more interesting. So she shut the door to her bedroom and pulled a pillow over her head so she wouldn’t hear the siren anymore. Only for a minute, of course, while she finished another page.

Only by the time she’d finished that page, she’d forgotten all about the tornado siren. She was lost in her book.

A friend even called her and urged her to take shelter, but Sarah only got mad at her friend for disturbing her. This book was so interesting. It was becoming harder and harder to stop. Just a few more pages…

Thus Sarah kept reading, despite the shaking of her window panes as the tornado grew closer and closer. She ignored the warning–and then it was too late.

*“As it is said, ‘Today, if you hear his voice, do not harden your hearts as in the rebellion.’” Hebrews 3:15 (ESV)*

*“Behold, now is the favorable time; behold, now is the day of salvation.” 2 Corinthians 6:2b (ESV)*

But have you ever wondered whether your hose would reach the flower bed on the other side of the driveway…and wanted to find the answer *without* having to unwind the hose?

Assuming your hose is wound up in circles, you can use math to find the approximate length of the hose, which would tell you if it’s worth trying to reach that flower bed.

First, measure the diameter of (or the distance across) each of the circles the hose is wound in (they may not all be exactly the same, but we’re looking for a rough idea here).

If the diameter of each circle is about 2 ft, then the circumference of each circle is approximately 3 x 2 ft, or 6 ft, as the circumference equals pi (which we’re rounding to 3 to make the math easier to do in our head) times the diameter.

*Circumference* = *pi* x *diameter*

*Circumference* = 3 x 2 ft = 6 ft

This means that every time the hose is wound into a circle, it takes about 6 ft of hose.

Now we can count how many times the hose is wound into a circle and multiply that by 6 ft to find the length of hose. If the hose is wound into 10 circles, then we’d know there’s about 10 x 6, or 60 ft, of hose.

Now of course, we’re only approximating the length of the hose. The circles a hose is wound into are likely not all exactly the same size. And we approximated pi to 3, when it’s really a number that begins 3.14 and continues on and on. But often, getting an approximate answer is all we really need. It can give us an idea of whether a hose will extend to that distant flower bed…or let us know about what size hose we’d need to buy to replace it.

Understanding the relationship between the diameter and circumference of a circle applies in more places than you might initially think! In fact, this example was inspired by a man who shared how he uses math on his construction job to estimate the amount of material left on a roll. Remember that math is a tool we can use to help us describe God’s creation and complete the tasks He’s given us to do.

Imagine learning math in connection with real-life applications…all while building a biblical worldview!

Imagine if students really understood **algebra **and why they needed to learn it.

Well, now they can! Katherine’s newest curriculum covers the core concepts of algebra in a way that leaves students understanding why they’re learning what they’re learning and how it points to the Lord.

Watch the short video to learn more.

]]>

Sarah forced a smile. Her little girl had so much to learn about treasures! Kaitlyn had unceremoniously thrown away or strewn across the room as worthless all Sarah’s important jewelry, keepsakes, letters, and other valuables. On the other hand, Kaitlyn was treating all the unimportant things—such as a roll of toilet paper and the all-enthralling cardboard jewelry box—as great treasures.

*“Happy is the man that findeth wisdom, and the man that getteth understanding. ^{ }For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold.^{ }She is more precious than rubies: and all the things thou canst desire are not to be compared unto her.” Proverbs 3:13-15*

*“Again, the kingdom of heaven is like a merchant in search of fine pearls, who, on finding one pearl of great value, went and sold all that he had and bought it.” Matthew 13:45-46*

The eCourse will feature a short video to go with every lesson in the textbook. The videos will walk through the material covered in the curriculum, making it a perfect supplement for auditory or visual learners, or any student who needs a little more guidance in math.

Anyway, this video offers a very short overview!

Please leave a comment with your thoughts. The eCourse is also now available for preorder at a special price of $49.99. This price will grant access to the eCourse for the 2016-2017 school year.

]]>

I’m excited to announce that, in addition to the math resources in the store, I’m now offering online math tutoring for elementary through Algebra 2. My goal is to quickly get students unstuck, to help them see the concepts as a useful tool to describe God’s creation, and to equip them to work through problems on their own again.

As a special introductory offer, hour-long tutoring sessions are only $25 (half off the normal rate). There’s no ongoing commitment–attend however few or many sessions you need.

Learn more and sign up for a math tutoring session.

(Please share with any friends you know who might be blessed by this.)

]]>Grandpa didn’t look so impressed. “It’s a big one, all right,” he replied. “But do you see any tomatoes?”

Justin skipped over to the plant and began inspecting it more carefully. To his surprise, he hardly saw any tomatoes—only an abundance leaves.

“Why aren’t there any tomatoes, Grandpa?”

Grandpa shook his head. “That plant has been so focused on foliage it’s forgotten what really matters. Come here, Justin. See this plant over here? Now this one is bearing fruit.”

Justin followed his grandfather over to the other corner of the garden where there was a tomato plant. At first glance, the plant was unimpressive. It only had a few leaves, and they weren’t perfectly green and luscious like the other plant’s. But it had many clumps of bright red tomatoes ready for picking. This plant was bearing fruit.

*“Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and that your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you.” John 15:16 (KJV)*

*“But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, Meekness, temperance: against such there is no law.” Galatians 5:22-23 (KJV)*

*“I am the vine, ye are the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.” John 15:5 (KJV)*

Room acoustics is a fascinating example of geometry in action. And it’s all possible due to the underlying order God has placed within sounds. You see, sound waves reflect off surfaces in a consistent fashion, making it possible to design buildings to reflect sounds where we want them to go.

*P.S. The sounding board shown is from the church George Washington attended (Christ Church in Alexandria, VA). Here’s a link to a prayer Washington wrote for our nation and his inaugural address, both of which are filled with reminders of God’s sovereignty.*

(For more examples of angles in action, see Book 1 of *Principles of Mathematics: A Biblical Worldview Curriculum.*)